Self-blame
Ali and Cesur did everything together so it was hard for Ali not to feel a little betrayed when Cesur kept on running off. Did he not like being with him? He didn’t remember his father ever saying that roaming was a problem with him. Did he need to bring him on more walks? He worried that he was the cause of this but infact, Cesur’s disappearance act had nothing to do with him at all.